EP3544112A1 - Procédé et système de commande permettant de commander un système de batterie ainsi que véhicule électriquement fonctionnant sur batterie, en particulier chariot de manutention, équipé du système de commande - Google Patents

Procédé et système de commande permettant de commander un système de batterie ainsi que véhicule électriquement fonctionnant sur batterie, en particulier chariot de manutention, équipé du système de commande Download PDF

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Publication number
EP3544112A1
EP3544112A1 EP19160183.0A EP19160183A EP3544112A1 EP 3544112 A1 EP3544112 A1 EP 3544112A1 EP 19160183 A EP19160183 A EP 19160183A EP 3544112 A1 EP3544112 A1 EP 3544112A1
Authority
EP
European Patent Office
Prior art keywords
battery
electronics
battery system
battery electronics
electrical energy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19160183.0A
Other languages
German (de)
English (en)
Inventor
Thomas Kowalski
Heiko Sippel
Berthold Häcker
Dr. Jörg Wilhelm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linde Material Handling GmbH
Original Assignee
Linde Material Handling GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linde Material Handling GmbH filed Critical Linde Material Handling GmbH
Publication of EP3544112A1 publication Critical patent/EP3544112A1/fr
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/24—Electrical devices or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the invention relates to a method for controlling a battery system equipped with at least one battery and at least one battery electronics with at least one power connection, via which at least one electrical load can be supplied with electrical energy from the battery and / or via which the battery is charged by means of a charging device can, and with at least one communication port, via which a communication connection between the battery electronics and provided outside the battery system control device can be made, the battery electronics is supplied with electrical energy from the battery, and at predetermined operating conditions, the power supply of the battery electronics and separate the battery electronics is deactivated, whereby the battery system is turned off, and a control system for carrying out the method and an electrically operated vehicle, in particular an industrial truck, with a battery system and a vehicle control system.
  • lithium-ion batteries or lithium-ion batteries also called lithium-ion secondary batteries. This is understood to mean accumulators based on lithium compounds in all three phases of the electrochemical cell.
  • the reactive materials in both the negative and positive electrodes and the electrolyte contain lithium ions.
  • Lithium ion batteries have a high specific energy compared to other types of batteries, but require electronic protection circuits in most applications because they are sensitive to both deep discharge and overcharge.
  • a large number of individual battery cells in series and / or parallel connection are typically connected as a battery.
  • Such battery systems usually also have electronics (so-called Balancing circuits), the so-called “cell-balancing” equalizes the state of charge of all battery cells in the battery system to each other.
  • the charge must be terminated or at least the charging current must be reduced if the first cell exceeds the maximum voltage. Accordingly, the discharge must be terminated when the first cell falls below the minimum voltage.
  • battery electronics These embedded and / or paged electronics generic and inventive battery systems are summarized below under the term battery electronics.
  • this battery electronics requires a small but necessary energy for the supply. The energy is either taken from a secondary energy source, fed from the primary energy source, or directly from the primary energy source, ie the battery. This results in discharge processes that lead to damage to the battery system due to deep discharge, unless the battery electronics is disconnected controlled.
  • the shutting down of the battery electronics is typically done by means of measured voltage levels in the battery or by means of state-of-charge (battery state of charge) determining algorithms. It also includes peripheral parameters such as temperature and battery life (sate-of-health).
  • the self-consumption of a battery system consists of the self-discharges of the battery cells forming the battery, which are very low, and the self-consumption of the battery electronics, which is dominant together.
  • the self-consumption of the battery electronics must be reduced by suitable measures (eg sleep modes).
  • suitable measures eg sleep modes.
  • the battery electronics to protect the battery system must be completely separated from the battery cells.
  • an auxiliary voltage supply is connected to an additional external auxiliary power connection of the battery electronics or the battery system for the short-term supply of the battery electronics.
  • the present invention has for its object to provide a method of the type mentioned in such a way that switching on the battery system is made possible without an additional auxiliary power connection of the battery electronics and the battery system.
  • This object is achieved procedurally according to the invention in that for switching on the battery system, the battery electronics via the communication port is at least as long as supplied with electrical energy until the battery electronics is activated.
  • the already existing communication port of the battery system is used to power the battery electronics to unlock the battery electronics again and to activate.
  • a bus is a system for data transmission between several subscribers over a common transmission path.
  • This may be a serial bus system, in particular a CAN bus (Controller Area Network) or a LIN bus (Local Interconnect Network) or an RS485 bus.
  • the energy of the bus communication is used to switch the battery electronics back on.
  • a special message or a special signal is transmitted, in which not the actual content of the message or the signal is crucial, but rather the transmitted energy is crucial.
  • the control device thus sends to turn on the battery system via the communication port, a signal with which the required energy is transmitted to activate the battery electronics. As soon as a defined energy threshold is exceeded, the battery electronics can be reactivated.
  • the inventive method thus enables a reconnection of a battery system with battery electronics, the auxiliary power supply for enabling or activating the battery electronics via the existing communication port and the bus communication.
  • this method of activating the battery electronics in an operating state of the battery system in which the power supply of the battery electronics is separated when discharging the battery below a predetermined state of charge. After activation of the battery electronics, the power connection for charging the battery can then be disconnected by means of the charging device. Thus, the battery can be charged again in a conventional manner.
  • the method of activating the battery electronics can also be used in an operating state in which the power supply of the battery electronics for a transport mode is disconnected.
  • a transport mode is often selected in which the battery system is switched off by disconnecting the battery electronics from the power supply.
  • a special mode is preferably used, in which despite protection mechanisms the battery electronics remain active for a defined time and the power path (power connection) is released for a necessary charge by means of the charging device or the battery changes from transport mode to normal operating mode.
  • a lithium ion battery is preferably used.
  • This may be e.g. to a lithium-cobalt dioxide accumulator, in which the positive electrode of the eponymous lithium-cobalt (III) oxide (LiCoO2) consists.
  • a lithium titanate secondary battery in which the conventional graphite electrode (negative pole) is replaced with a lithium titanium spinel (Li4Ti5O12) sintered electrode may be used.
  • a lithium polymer battery can be used.
  • the essential feature of the polymer accumulator is the nature of the design of the normally liquid electrolyte, which is a solid to gelatinous polymer-based film. Lithium-manganese batteries, lithium-iron-phosphate batteries or lithium-air batteries may also be considered.
  • the battery system of an electrically operated vehicle is used as the battery system.
  • This can be all battery-powered vehicles with a traction battery or even hybrid vehicles with a hybrid drive, in which an internal combustion engine and a battery electric drive are interconnected.
  • the battery system of an electrically operated vehicle in particular an industrial truck, is very particularly preferably used as the battery system.
  • These may also be purely battery-powered vehicles or those with hybrid drive.
  • the vehicle control of the electrically operated vehicle or the electrically operated truck is usually anyway via the communication port with the battery electronics of the battery system in conjunction to exchange data with the battery electronics.
  • This communication connection can ideally be used to supply the battery electronics with electrical energy when the battery electronics, for example due to an automatic low voltage shutdown is no longer powered by the battery. In this way, the battery electronics can be reactivated by the vehicle control by transmitting electrical energy via the communication link.
  • the invention further relates to a control system for carrying out the method with a battery system equipped with at least one battery and at least one battery electronics having at least one power connection and at least one communication connection which is connected to a control device provided outside the battery system.
  • control device is adapted to provide the battery electronics via the communication port at least as long as with electrical energy until the battery electronics is activated.
  • the invention relates to a battery-electrically powered vehicle, in particular industrial truck, with a battery system equipped with at least one battery and at least one battery electronics and a vehicle control.
  • the stated object is achieved in that the vehicle controller, a control system with a battery with at least one battery and battery equipped battery system with at least one power connection and at least one communication port, which is connected to a provided outside the battery system control device is, comprises, and the control device is adapted to supply the battery electronics via the communication port at least as long as with electrical energy until the battery electronics is activated.
  • the invention is applicable to all battery systems with integrated and external electronics, which have a self-energy demand. In addition to mobile and stationary energy storage systems can be equipped with it. Especially for transport and storage of the battery system, the invention may be useful. Even with long downtimes, the invention can be applied.
  • the invention offers a whole series of advantages: No additional internal or external energy sources are needed to restart the battery system. An undefined charging via secondary battery connections is prevented. In addition, no additional plug-in systems or connector pins for restarting are required. There is a very long reconnection by a standard method, without special training (service technician) are necessary for the reactivation of the battery system. Even with longer transfers or storages of battery systems, the battery system can be activated directly with the associated charging device or a different kind of activation device (transport mode and storage mode). Furthermore, the security requirements for the battery system are not adversely affected by the supply variant according to the invention. The galvanic isolation between bus system and battery voltage remains. In addition, the abuse protection for the battery system or the entire vehicle is increased because even at normal battery voltage level, the mode can be used to restart the battery system. Overall, an energy-efficient undervoltage protection system is provided.
  • an inventive battery system 1 of a battery-electrically powered vehicle such as a truck
  • the battery 2 of the battery system 1 is formed as a lithium-ion battery having a plurality of battery cells.
  • the battery cells can be connected in series and / or parallel connection be.
  • the battery 2 is connected via a power path 8 with a control unit 3, which includes protection and separation systems and a measurement technique.
  • the control unit 3 is connected to external power terminals 14 via a further power path 11 and corresponding power terminals 11a.
  • the power connections 11a, 14 can be connected to the electric drive of the vehicle, for example an industrial truck. Alternatively, the power terminals 11a, 14 may be connected to a charger to charge the battery 2.
  • the battery 2 is on the other hand connected via an internal supply line 5 with a battery electronics 4 via which the battery electronics 4 is supplied by the battery 2 with electrical energy.
  • the battery electronics 4 monitored via a line 7, the battery 2 and serves to protect against over-discharge, over-charge and thermal overload.
  • the battery electronics 4 equalized by so-called "cell balancing" the state of charge of all battery cells of the battery 2 to each other.
  • the battery electronics 4 is also connected via an internal communication line 9 with the control unit 3 in connection. Via a further communication line 10 and a communication terminal 10 a, the battery electronics 4 is connected to an external communication connection 13.
  • Connected to the external communication link 13 is a control device for the external control of the battery system 1 integrated into a vehicle control of the vehicle.
  • the communication link 13 is preferably designed as a bus connection, for example CAN bus, LIN bus, RS485.
  • an undervoltage protection is initiated by the control unit 3 in order to protect the battery 2 from harmful deep discharge.
  • the internal supply line 5 is separated from the battery electronics 4 via an internal switching line 6, so that the battery electronics 4 is deactivated.
  • an external auxiliary power supply 12 is connected to an additional auxiliary power connection of the battery electronics 4 and the battery system 1.
  • the already existing communication connection 10a of the battery system 1 and the communication connection 13 are used to supply power to the battery electronics 4.
  • the control device integrated in the vehicle control sends a signal or a message via the communication connection 13 and the communication connection 10a, with which the required energy is transmitted for activating the battery electronics 4.
  • the battery electronics 4 can be reactivated.
  • a special mode is used, in which, despite protective mechanisms, the battery electronics 4 remains active for a defined time and the power paths 11 and 8 of the battery 2 are released for a charge of the battery 2 by means connected to the power terminals 11a and the external power terminals 14 charging device ,

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • General Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Geology (AREA)
  • Secondary Cells (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
EP19160183.0A 2018-03-19 2019-03-01 Procédé et système de commande permettant de commander un système de batterie ainsi que véhicule électriquement fonctionnant sur batterie, en particulier chariot de manutention, équipé du système de commande Pending EP3544112A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018106369.5A DE102018106369A1 (de) 2018-03-19 2018-03-19 Verfahren und Steuerungssystem zur Steuerung eines Batteriesystems sowie mit dem Steuerungssystem ausgestattetes batterie-elektrisch betriebenes Fahrzeug, insbesondere Flurförderzeug

Publications (1)

Publication Number Publication Date
EP3544112A1 true EP3544112A1 (fr) 2019-09-25

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EP19160183.0A Pending EP3544112A1 (fr) 2018-03-19 2019-03-01 Procédé et système de commande permettant de commander un système de batterie ainsi que véhicule électriquement fonctionnant sur batterie, en particulier chariot de manutention, équipé du système de commande

Country Status (2)

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EP (1) EP3544112A1 (fr)
DE (1) DE102018106369A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220035769A (ko) * 2020-09-14 2022-03-22 주식회사 엘지에너지솔루션 배터리 제어 시스템, 배터리 제어 방법 및 전기 차량

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010128066A2 (fr) * 2009-05-06 2010-11-11 Continental Automotive Gmbh Système d'accumulation d'énergie
US20120242283A1 (en) * 2011-03-25 2012-09-27 Nam Yun Kim Portable device and wireless power charging system for portable device
EP2517922A2 (fr) 2011-04-29 2012-10-31 Jungheinrich Aktiengesellschaft Chariot de manutention avec au moins une batterie lithium-ion
DE102013114545A1 (de) * 2013-12-19 2015-06-25 Linde Material Handling Gmbh Traktionsbatterie für mobile Arbeitsmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010128066A2 (fr) * 2009-05-06 2010-11-11 Continental Automotive Gmbh Système d'accumulation d'énergie
US20120242283A1 (en) * 2011-03-25 2012-09-27 Nam Yun Kim Portable device and wireless power charging system for portable device
EP2517922A2 (fr) 2011-04-29 2012-10-31 Jungheinrich Aktiengesellschaft Chariot de manutention avec au moins une batterie lithium-ion
DE102013114545A1 (de) * 2013-12-19 2015-06-25 Linde Material Handling Gmbh Traktionsbatterie für mobile Arbeitsmaschine

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Publication number Publication date
DE102018106369A1 (de) 2019-09-19

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